618085236 has 48 divisors (see below), whose sum is σ = 1494743040. Its totient is φ = 198549120.

The previous prime is 618085217. The next prime is 618085243. The reversal of 618085236 is 632580816.

It is a happy number.

It is a super-2 number, since 2×618085236² = 764058717922351392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 618085194 and 618085203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228685 + ... + 231371.

It is an arithmetic number, because the mean of its divisors is an integer number (31140480).

Almost surely, 2^618085236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618085236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747371520).

618085236 is an abundant number, since it is smaller than the sum of its proper divisors (876657804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618085236 is a wasteful number, since it uses less digits than its factorization.

618085236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384 (or 3382 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 618085236 is about 24861.3200775824. The cubic root of 618085236 is about 851.8231851117.

The spelling of 618085236 in words is "six hundred eighteen million, eighty-five thousand, two hundred thirty-six".